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    <title>Document</title>
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    <script>
      function buildList(list) {
        var result = [];
        for (var i = 0; i < list.length; i++) {
          var len = result.length;
          var item = 'item' + i;
          console.log(list[i]);
          var x = list[i];
          result[len] = function (x) {
            console.log(item + list[i] + x);
          };
        }
        return result;
      }
      function testList() {
        var fnlist = buildList([1, 2, 3]);
        var arr = [1, 2, 3];
        for (var j = 0; j < fnlist.length; j++) {
          fnlist[j](arr[j]);
        }
      }
      testList();
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